Product Introduction

WTY1 External-Rotor Elevator Traction Machine

Name: Traction Machine
Brand: KDS
SKU: SH-04020243
Price: 4191.12 USD
Availability: InStock

Single-wrap traction machines for 2:1 elevator roping, with 1,250 kg and 1,600 kg configurations.

Select the exact capacity and speed below. The four configurations use a 400 mm traction sheave and a drum brake.

WTY1 traction machine product appearance — WTY1 external-rotor traction machine.

Model specifications

Model	Capacity (kg)	Elevator speed (m/s)	Rated output (kW)	Rated current (A)	Rated speed (rpm)	Frequency (Hz)	Torque (N·m)	Weight (kg)
WTY1-1600-100	1600	1.0	10.8	25	95	15.9	1086	515
WTY1-1600-150	1600	1.5	16.3	40	143	23.9	1086	515
WTY1-1600-175	1600	1.75	19.0	40	167	27.8	1086	515
WTY1-1250-100	1250	1.0	8.5	19	95	15.9	850	505

Rope and sheave configuration

Model	Sheave Ø (mm)	Ropes	Groove spacing (mm)	Cut angle β	Groove angle γ	Roping	Shaft load (kg)	Rotational inertia (kg·m²)
WTY1-1600-100	400	8 × Ø10 mm	16	95°	30°	2:1	4500	7.30
WTY1-1600-150	400	8 × Ø10 mm	16	95°	30°	2:1	4500	7.30
WTY1-1600-175	400	8 × Ø10 mm	16	95°	30°	2:1	4500	7.30
WTY1-1250-100	400	6 × Ø10 mm	16	95°	30°	2:1	4500	7.30

Motor and brake

Parameter	Specification
Motor rated voltage	380 V AC
Poles	20
Duty cycle	S5–40%
Protection rating	IP40
Insulation class	F
Undercut	U
Foot-pad flatness	< 0.5 mm
Brake type	Drum
Brake voltage options	110 V AC or 110 V DC
Hand wheel	Provided
Remote brake release	Provided

Dimensions and mounting

WTY1 side and front outline drawing with mounting dimensions — Side and front views for the listed 1,250 kg and 1,600 kg configurations. All dimensions are in millimetres. The traction sheave diameter is 400 mm; ΦD1 identifies the hand-wheel dimension shown in the side view.

Dimension	mm	Dimension	mm	Dimension	mm
D1	181	D2	110.5	D3	290.5
D4	436	D5	122.5	D6	215
W1	380	W2	600	W3	111.5
W4	714	H1	825	H2	239
H3	290	H4	30	ΦD1	550

The side-view groove-position indications distinguish odd and even groove arrangements. Match the rope arrangement and installation clearances to the selected configuration.

Brake power and installation

The 110 V AC brake option is supplied with a controller and does not require a step-down circuit in the control cabinet.
The DC brake requires a full-wave rectified supply. Its holding voltage is 50% of its pickup voltage, so the control cabinet must provide the required voltage-reduction and switching circuit.
Confirm the AC or DC brake option when ordering. For other brake voltages, consult an engineer before selection.

Frequently Asked Questions

What is the listed configuration for WTY1-1600-100?

The cited WTY1 series table identifies WTY1-1600-100 as a synchronous gearless traction-machine configuration for 1600 kg and 1.0 m/s.

What suspension is associated with this configuration?

The cited configuration is listed for 2:1 suspension. Confirm the actual lift roping before ordering.

Which interfaces still need project confirmation?

Confirm the full model, sheave and rope arrangement, brake, encoder, mounting dimensions and electrical interfaces from the nameplate and approved drawings.